Home / 3,928.16-5,893.80-1,619.12

Finding the Fourth Proportional to 3,928.16, 5,893.80 and 1,619.12

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Solution

The fourth proportional to 3,928.16, 5,893.80 and 1,619.12 is: 2,429.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,928.16 : 5,893.80 = 1,619.12 : x
  2. Step 2: Convert to fraction form
    3,928.16/5,893.80 = 1,619.12/x
  3. Step 3: Cross multiply
    3,928.16x = 5,893.80 × 1,619.12
  4. Step 4: Simplify right side
    3,928.16x = 9,542,769.46
  5. Step 5: Solve for x
    x = 9,542,769.46/3,928.16
  6. Step 6: Final answer
    x = 2,429.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.